Hardly a drop of water makes it to the estuary of the Colorado River; the demand for water in its catchment area is just too big, but conservationists are working to make the estuary green again.
In dry Andalusia, Spain, water was considered liquid silver by the Moors: nowadays, farmers, scientists, and conservationists are working together to save the treasure of Andalusia for the future.
For decades, the Emscher in the Ruhr District was the most polluted river in Europe, now it's being returned from an industrial sewer to a natural river system.
Climate change is whipping up storms and raising the sea level: after years of relying on dykes and canals, the Netherlands is seeking a new pact with water to protect the low-lying country.
The Jordan is the most important water source for Jordanians, Israelis, and Palestinians, but intensive farming is robbing the sacred river of its water.